I have a 94 s10 4.3 vortec W motor, my fuel pump went out, replaced it with new. Got gas n tank good spark, but I'm still not getting fuel to the fuel filter or engine. I turn the truck over n it want
want to start but not turning over. Blew out the fuel line and looked for
pinches in the line. Can hear fuel pump turn on n sounds like it's
working but have no idea why I'm not getting fuel to the right places...
Please help any and all help is very great full!!
Might have to drop tank and see if the little filter is on or maybe lose line in tank or junk new pump.
This is the second pump we got one was 30 psi n the W engine requires a 45 psi pump. So went back and got the right one for the truck. We dropped the tank pry 4 or 5 times and rechecked out work n only thing I can think of is it needs a new fsu unit, but what makes me think it doesn't is I drove the truck to the destination about 5 miles away where we could work on it and the truck ran fine with the same fsu in it. We dropped tank and checked screen filter n everything is connected proper. Still not even getting gas pressure or gas movement threw the main gas line...
fuel pup relay is bad it controls the pump from start position to run position of your ignition switch basically it starts the pump running before you start the engine and afterwards it runs the pump off of a engine sensor not direct power
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